Answer:
Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.
Answer:
The average speed of a particle for a given ‘Interval of time’ is defined as the ratio of total distance travelled to the total time taken.
Explanation:
To find the average speed we take the total
distance traveled divided by the time interval.
The answer is C.rationing.
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Answer:
F' = 64 N
Explanation:
The force of gravitation between two objects is given by Newton's Law of Gravitation as follows:
______________ equation (1)
where,
F = Force = 16 N
G = universal gravitational constant
m₁ = mass of the first object
m₂ = mass of the second object
r = distance between objects
Now, the masses of each object are doubled and the distance between them is same:
m₁' = 2m₁
m₂' = 2m₂
r' = r
Hence, the new force will be:
![F' = \frac{G(2m_{1})(2m_{2})}{r^2}\\\\F' = 4\frac{Gm_{1}m_{2}}{r^2}](https://tex.z-dn.net/?f=F%27%20%3D%20%5Cfrac%7BG%282m_%7B1%7D%29%282m_%7B2%7D%29%7D%7Br%5E2%7D%5C%5C%5C%5CF%27%20%3D%204%5Cfrac%7BGm_%7B1%7Dm_%7B2%7D%7D%7Br%5E2%7D)
using equation (1), we get:
F' = 4 F = 4(16 N)
<u>F' = 64 N</u>